Improvement in shaft-coupling



intimi" met @sind 'tililine SETH` H. WHITMORE, F DEOATUR, ILLNOIS, ASSIGN'OR TO CALEB BURROUGHS AND JAMES` MILLIKEN, 0F SAME'PLACE.

Letters Patent No. 106,7

56, dated August 23, 1870.

-IMPRovnMEN'r IN SHAFT-COUPLING.

The Schedule referred to in these Letters Patent and making part oi' the same.

To all whom 'it may concern l Be it known that I, SETE H. WHITMORE, of

- Decatur, in the county of Macon and in the State of Illinois, have invented certain newv and useful Improvements in Securing Pulleys and Wheels to Shafts;

and do hereby declare that the following is a full,-I

specification.

The nature of myinvention consists `in an 'improved method of securing Wheels and pulleys to shafts, by means ofa sleeve introduced between the hub of the wheel or pulley and the shaft.

1n order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construct-ion-and operation, referring tothe annexed drawing, in which- Figure 1 is a longitudinal vertical section, and

Figure 2, aside view ot' my'invention.

A represents the shaft, and

B, the wheel or pulley, made in any of the known or usual styles.

A sleeve, C, is put onthe inside of the hub, said Vsleeve being slotted on one side from end to end, and

receives the end of .the set-screw D,.instead ofthe shaft, as Vin the common way.

By driving the set-screw D down'on the sleeve C, on the outer side, it closes theinner side onto the the shaft, thus giving the sleeve a bearing on the entire surface of the shaft, also prevents the set-screw 'from injuring the shaft, as is the ease when driven onto or into it, at the saine time making the pulley to have more power.

1f deemed necessary to prevent the sleeve from turning on the shaft, it may be fastened by a key iu' stead of a set-screw or screws, by putting the key between the hub ofthe wheel or pulley and the slotted Having thus fully described myA invention,

What l claim as new, and desire 15o-secure by Letters Patent, is-' The method herein described of 4securing wheels or pulleys to shafts, bymeans of a slotted sleeve intlduced between the hub of said wheel or pulley and the. shaft, and fastened by one or more set-screws or keys, substantially as and for the purposes herein set forth.

In testimony that I claim the foregoing, I have hereunto set my hand this 31st day of J annary, 1870.

SETH H. WHITMOR-E. Witnesses ALLEN LITSINBERGER, B. B. BABcooK. 

